I'm trying to get the RTF data out of a richeditcontrol. Couldn't find an easy way so i'm trying to use Interop.

so far i have:

code:

---

function OnWndMainEvent_CtrlClicked(PlusWnd, ControlId)
{
    if (ControlId == "BtnSend")
    {
        var SF_RTF = 0x2
        var SF_UNICODE = 0x10
        var WM_USER = 0x400
        var EM_STREAMOUT = (WM_USER + 74)
        var len = PlusWnd.GetControlText("CodeBox").length;
        var editStream = Interop.Allocate(24)
        editStream.WriteDWORD(0,0)
        editStream.WriteDWORD(8,0)
        editStream.WriteDWORD(16,Interop.GetCallbackPtr("EditStreamCallback"))
        var lResult = Interop.Call2("user32.dll", "SendMessageW", PlusWnd.GetControlHandle(ControlId), EM_STREAMOUT, SF_RTF || SF_UNICODE, editStream )
        Debug.Trace("result: " + lResult)
    }
}

function EditStreamCallback(dwCookie, lpBuff, cb, pcb)
{

}

---

Are you trying to get the raw rtf text?

Ye, i'm trying to get the rtf raw data out i can parse it and replace any color values with with ones used in msgplus and then send the message so the receiver will see the rich text

Ok first thing first you dont want to use || when calling the function. You want to use |.

ok, changing it doesnt make it work though. I have no idea what I need to change, bit that confused me most was

code:

---

        var editStream = Interop.Allocate(24)
        editStream.WriteDWORD(0,0)
        editStream.WriteDWORD(8,0)
        editStream.WriteDWORD(16,Interop.GetCallbackPtr("EditStreamCallback"))

---

The structure should only be 12 bytes in size.

I almost have it working... just give me a bit to post it and clean it up

Thanks! , works great, the cookie matches. Looks like i wasn't far off from doing it myself, i would never have worked out what was wrong

Thanks for help so far Need one last thing before I can finish my script, sorry. The callback function returns a pointer to the buffer and the buffer length and no idea how to retrieve the string using script, not sure there is a way to access the pointer directly?


edited:
I've found the DataBloc::ReadString method

[string] ReadString(
    [number] Offset,
    [boolean,optional] ReadUnicode,
    [number,optional] Size
);

Just testing it

js code:

---

// variables
var SF_RTF = 0x2;
var SF_UNICODE = 0x10;
var WM_USER = 0x400;
var EM_STREAMOUT = (WM_USER + 74);

// did this just to make sure that function call smaller
var nFlags = SF_RTF | SF_UNICODE;

/*
// this was my testing
MsgPlus.CreateWnd('WndMain.xml', 'WndMain');
Debug.DebuggingWindowVisible = true;*/

function OnWndMainEvent_CtrlClicked(PlusWnd, ControlId) {
    // check which control is sending the event
    if (ControlId == 'BtnSend') {
        // create a variable to hold the handle of the rtf control
        var CodeBox_hWnd = PlusWnd.GetControlHandle('CodeBox');
        // print this handle to verify for later use
        Debug.Trace('CodeBox Handle: '+CodeBox_hWnd);
        // create our memory block for the EDITSTREAMCALLBACK
        var EDITSTREAMCALLBACK = Interop.Allocate(12);
            /* specify the application defined variable (simply to verify
               the rtf box is the one the function is relating to) */
            EDITSTREAMCALLBACK.WriteDWORD(0, CodeBox_hWnd);
            // get the callback pointer for our function
            EDITSTREAMCALLBACK.WriteDWORD(8, Interop.GetCallbackPtr('EditStreamCallback'));
        // send the message to the control
        // notice the use of Call not Call2; Call is for functions that return an INT, Call2 is to return a BSTR - http://mpscripts.net/docs/ref-interop-call2.php
        Interop.Call('user32', 'SendMessageW', CodeBox_hWnd, EM_STREAMOUT, nFlags, EDITSTREAMCALLBACK.DataPtr);
    }
}

function EditStreamCallback(dwCookie, lpBuff, cb, pcb) {
    // dwCookie should match the CodeBox control handle
    Debug.Trace ('dwCookie: '+dwCookie);
    // print the length of the raw rtf data
    Debug.Trace ('cb: '+cb);
    // define a datablock large enough to hold our data
    var lpsz = Interop.Allocate(cb+1);
    // copy the memory from the data buffer to our allocated memory block
    Interop.Call('kernel32', 'RtlMoveMemory', lpsz, lpBuff, lpsz.Size);
    // print out the result
    Debug.Trace(lpsz.ReadString(0, false));
}

---

THANKS! your a genius.

I can finish my script now

No problem, glad I could help.